Stock



(No Model.)

S. FOX.

MANUFACTURE OF FRAME PLATES FOR ROLLING $TOGK.

Patented Feb. 5,1889

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UNTTEn STATE PATENT @rricn.

SAMSON FOX, ()F IIARROGATE, COUNTY OF YORK, ENGLAND.

MANUFACTURE OF FRAME-PLATES FOR ROLLING-STOCK.

SPECIFICATION forming part of Letters Patent No. 397,177, dated February5, 1889.

Application filed January 18, 1888- flerial No. 261,165. (No model.)

To all whom it may concern:

Be it known that I, SAMSON FOX, a subject of the Queen of Great Britainand Ireland, residing at Harroga-te, in the county of York, Kingdom ofGreat Britain and Ireland, have invented new and useful Improvements inthe Manufacture of Fl'ttl'llO-Plil-(ZOS for Rolling- Stock, of which thefollowing is a specification.

In. the specification of former Letters Patent granted to me under dateof the 11th day of May, 1886, No. $41,802, is described the manufactureof frame-plates for locomotives and other rolling-stock, each made ofthe de sired form with flange or flanges to give it the requiredstrength or rigidity of a single plate of metal by pressing or stamping.

Now my present invention has reference to a further development of thesaid former invention, according to which I produce not only a flange orflanges at one side of the plate, but likewise a fillet or fillets (orprojection or projections) where required (as, for example, around theopenings for the axleboXes) at the other side of the plate, as I willproceed to describe.

My invention is illustrated in the accompanying drawings, in whichFigure 1 represents part of the metal plate to be subsequently formedinto the frameplate. Fig. 2 represents a plan view of the plate aspressed preparatory to the final shaping. Fig. 3 represents a sectionthrough Fig. 2, showing the shape of the metal before completion. Fig.4: represents a plan view of the opposite side of the plate shown inFig. 2, showing the completed fillets or projections; Fig. 5, a sectionthrough Fig. 2 on the line 2 2 when the same has been pressed to asquare corner; Fig. 6, a section through Fig. 4: on the line 1 1.

In my said former invention the plate and the flanges, after beingformed by pressing or stamping, were of uniform thickness, or nearly so,and in no case was any flanged or bent part thicker than the ,plate fromwhich it had been formed. In dressing any part of the frame thus formedby planing where the boxes are to be fitted the thickness is stillfurther reduced. In my present invention I not only supplement theflanges formed by pressing or stamping, as in the former case,

1 by the addition of fillets or projections on the 1 opposite side ofthe plate, but by means of 1 these fillets or pro j ectionslincrease thethickness of the parts to such a degree as to peri mit the after planingto sides without reduction of thickness below the first thickness of theplate from which it is formed.

A plate of metalsuch as mild steel, as referred to in my formerspecificationhaving been cut roughly to form somewhat larger than theintended frame-plate, and having been otherwise suitably prepared-forexample, as represented in half-length in Fig. 1 of I the accompanyingdrawings is heated to a suitable temperature (say 000 Fahrenheit, orthereabout, or, say, to a bright-red heat) and pressed or stamped tonearly the required shape, as represented in Figs. 2 and 3, (also I inhalflength,) with flange or-flanges on one side. Those parts at which itis intended to form fillets or square corners are bulged or embossedoutward at the reverse side of the plate to that at which the flange orflanges is or are formed, as shown ata, Fig. 3, this bulged or embossedpart being for the purpose of obtaining at or near the plates where thefillets are to be formed an amount of metal sufficient to fill the diesused to give form in succeeding operations. This having been done, theplate is again heated once or oftener, as required, and while hot issubjected to a further pressing or stamping operation or operations,whereby the bulged or embossed parts a, above referred to, are mainlyflattened, so as to coincide with the plain surface 5 of the main bodyof the plate; but part of the surplus metal of each. bulged or embossedpart a, by being pressed or caused to flow into a recess or recesses ina suitable die, has imparted to it the form of a fillet or fillets-suchas shown at c, Fig. 4, and in Fig. 6 in section taken at 1 1, Fig. -l,to a larger scale-and at the same time is made to form square corners at(Z and 6, Figs. -l and 5, (large scale section in line 2 2, Fig. 2,) andFig. 6. The said fillets or projections 0 allow of being trued up afterthey become worn by the friction of the axle-box flanges or by lateralplay or oscillation of the rolling-stock without encroaching 011 thematerial of the main body or part of the frame-plate, the said filletsor projections forming likewise extra wearing-surfaces at the pointsdesired, and also adding to the strength and stiffness of the structureby rea son'oit' the increase of the thickness of the metal of this part.The fillets and the edge or edges of the flange or flanges, after beingproduced as described, may be trimmed.

For producing l'rameplates according to this invention, any suitableapparatus may be employed, preferring such as is described andillustrated in the specification ol my other application for LettersPatent of even date herewith and numbered 261,](16. it is necessary,however, that in the second part of my process the pressing shall bedone between two dies and not simply by forein the material through afemale die. it is obvious, likewise, that the square corners are not anessential part of in y invention.

I do not claim-as new a flanger'l frame for rolling-stock formed with aplate by pressing or stamping, such having been already invented andpatented by me.

\Vhat I claim is 1. The method or process of manulaeturing frame-platesfor rolling-stock with flanges and with square corners and fillets orprojections, which. consists in cutting a suitable plate toapproximately the form, but somewhat larger than the requiredframe-plate, heating same, producing by pressure the re quired flange orflanges at one side and bulgings or embossments at the contrary side,reheating the plate, and by pressure forming out of the metal of saidbulgings or embossments the desired square corners and fillets orprojections, substantially in the manner hereinabove described.

2. As a new article of nmnulfacture, a pressed-steel frame-plate havinga flange or flanges at one sideand fillets or projections at the otherside, formed integral with the body of the frame-plate itsell',substantially as described.

I The method orproeess of nunnil'aeturing frame-plates with flanges andwith fillets or projections, which consists in cutting a suitable plateto apl)roximately the form, but somewhat larger than the required frameplate, heating the same to produce by pressure the flange or flanges atone side and bulgings or embossme'nts at the contrary side, and byreheating and by pressure between two dies forming out of the metalformed by said bulgings or embossments the desired fillets orprojeetimis, substantially as described.

i. As a new article of maluitacture, a pressed-steel frame-plate forrolling-stock, having fillets or projections on one side and flangesformed on the other side, the fillets and the flanges being integralwith the body of the frame-plate itself and of greater thiele ness atthe junction than the bodyof the plate from which the are termed,substantially as described.

SAMW )N' FOX.

\\"ituesscs:

Tuos. E. CRAVEN, (f. 15., Fe]. Inst. Patent Agents, 2t Vic/oral lat/mhers, Leeds.

W11. SAoLEn,

' Leeds.

